These Christmas biscuits make perfect presents and they can also be made into Christmas tree decorations.
Preheat the oven to 190C/375F/Gas 5. Line a baking tray with greaseproof paper.
Cream the butter and sugar together in a bowl until pale, light and fluffy.
Beat in the egg and vanilla extract, a little at a time, until well combined.
Stir in the flour until the mixture comes together as a dough.
Roll the dough out on a lightly floured work surface to a thickness of 1cm/½in.
Using biscuit cutters or a glass, cut biscuits out of the dough and carefully place onto the baking tray. To make into Christmas tree decorations, carefully make a hole in the top of the biscuit using a straw.
Bake the biscuits for 8-10 minutes, or until pale golden-brown. Set aside to harden for 5 minutes, then cool on a wire rack.
For the icing, sift the icing sugar into a large mixing bowl and stir in enough water to create a smooth mixture. Stir in the food colouring.
Carefully spread the icing onto the biscuits using a knife and sprinkle over the glitter. Set aside until the icing hardens.
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